<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>hello word</h1>
    <!-- 仿照鸿蒙 -->
    <button  style="color: aqua;font-size: 20px;background-color: blueviolet;" onclick="alert('点击了一下')">按钮</button>
    <!-- 拆分写法 UI结构 -->
    <button class="btn" onclick="text()"></button>
</body>
</html>